Optimum BF16 Vario Modification Instructions page 42

OPTIMUM
M A S C H I N E N - G E R M A N Y
6.0.28 Mount V-ledges.
6.0.29 Grease spindle.
6.0.30 Grease bearing.
Page 43
Modification BF20 to a ball bearing spindle
Ball bearing spindle assembly and maintenance instruction ; Version 1.4.7
Table
V-ledge
Illustr.6-49: Mount V-ledge
Spindle
Illustr.6-50: Grease spindle
Bearing
Illustr.6-51: Grease bearing
03 / 08 / 2006